Replacing mach 460 Head unit(help)

hey i just bought a 2003 mustang convert, has the mach 460 system
i was wondering if could replace the head unit and still be able to use the other componets of the system.

i pulled a jvc kdshx700 head unit out of my jeep i traded in for the stang
and want to know if it will work the remaing componets of the mach system before i get it installed any help would be greatly appreciated

done lots of looking on the subject but am getting no-where some people say yes while others say no